off the top of your head

INFORMAL
This page is about the idiom off the top of your head.

Meaning: If you give someone information off the top of your head, you do so from memory, without checking beforehand.

For example:

  • I can't tell you Maxine's phone number off the top of my head. I'll have to check.

  • I don't know for sure, but off the top of my head I'd say that renting a two-bedroom apartment would cost about a thousand dollars a week.

Quick Quiz:

The one thing that everyone can tell you off the top of their head is

a. their name

b. their time of birth

c. their blood type

Idiom of the Day

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Contributor: Matt Errey